Mistake buying out of money warrants

Along my KLSE investing, I made a great number of mistake. Here I pen it down to remind me and to learn from my mistake.

I bought Mulpha-wa about 3 years ago during the hot iskandar theme at JB, 3 lots at 0.58,
Total loss = Rm 1740

Another is ASB-wa, 5 lots at 0.165,
Total loss = RM 825.00

I definitively will not convert to mother cos way out of money.

What I have learn?
1) 1st of All, I take full responsibility on my mistake.
2) I must always review my portfolio.
3) Never buy a bad ill sickening stock.

Anyone want to share What can I do to avoid this trap?